Husqvarna BLi30 7.5 Ah 40V Battery Electric Tools, 270Wh Lithium Ion Battery, 967937702

What It Is

The Husqvarna BLi30 is a 40V, 7.5 Ah (270 Wh) lithium-ion battery designed for high-capacity use in Husqvarna’s 40V battery platform. It’s ideal for larger lawns or extended runtime on compatible mowers, trimmers, blowers, and chainsaws, replacing or supplementing lower-capacity batteries.

Fitment & Compatibility

Before buying, confirm your tool is part of Husqvarna’s 40V battery system (not 120V or 36V). This battery fits all Husqvarna 40V tools, including Automower models (e.g., 430X, 450X) and handheld equipment. It is not compatible with other brands or Husqvarna’s older 36V or 120V systems. Check your tool’s model number in the manual or online—common compatible mowers include the LC 140P, LC 247i, and LC 347iV. The battery measures 6.5 x 4.5 x 4.3 inches and weighs 4.1 lbs; ensure your tool’s battery compartment can accommodate these dimensions (most 40V tools do, but verify if using an older model). OEM only; no reliable aftermarket alternatives exist.

Key Things to Know

• Runtime: Provides up to 60 minutes on a 21-inch mower (depending on grass conditions) and significantly longer on trimmers or blowers. Expect roughly 2x the runtime of a 4.0 Ah battery.
• Installation: Tool-free—slides into the battery bay until it clicks. No wiring or modifications needed.
• Charging: Use only Husqvarna’s 40V charger (QC40, QC80, or QC330). Full charge takes ~2 hours with the QC80, ~1 hour with the QC330.
• Common Gotchas: Avoid deep discharges—recharge after use to extend lifespan. Store indoors above freezing; cold reduces performance. The battery has a built-in fuel gauge (LEDs), but they can be inaccurate when cold.

Should You Buy It

Buy this if you have a large lawn (1/4 acre or more) or use multiple 40V tools back-to-back and need uninterrupted runtime. It’s also a smart upgrade if your current battery (e.g., 4.0 Ah) dies mid-job. Skip it if you have a small yard or only use a trimmer occasionally—a smaller, cheaper battery will suffice.